Zihatec

Sorry, but I can not understand your problem. I've tested it today again with the latest Raspberry Pi OS and a Raspberry Pi 4 and it works well on the scretch!Some people reported to me that they have problem when both example flows are loaded in Node-Red at the sdame time, because /dev/serial0 is exclusive and only one flow can use this interface at the same time. So, perhaps you can test this again with only one of the both flows loaded.....

Sorry, but I can not understand your problem. I've tested it today again with the latest Raspberry Pi OS and a Raspberry Pi 4 and it works well on the scret

Sorry, but I can not understand your problem. I've tested it today again with the latest Raspberry Pi OS, a Raspberry Pi 4 and our own HAT and it works well on the scretch!Please see my comment at the post of toreplatz too.Some additional comments about your post:1.) RS485 is a differtial serial interface. In dífference to a RS232 you have not to make a "cross-connection" between the wires for RS485 (half-duplex). "A" must be connected to "A" and "B" must be connected to "B" !!!!2.) This instructable is written for our RS485 HAT. This HAT is using the on-board UART of the Raspberry Pi. Please note: You can use /dev/ttyAMA0 to send and receive data to the on-board UART, but the better and more modern term is /dev/serial0 as in the descripti…

Sorry, but I can not understand your problem. I've tested it today again with the latest Raspberry Pi OS, a Raspberry Pi 4 and our own HAT and it works well on the scretch!Please see my comment at the post of toreplatz too.Some additional comments about your post:1.) RS485 is a differtial serial interface. In dífference to a RS232 you have not to make a "cross-connection" between the wires for RS485 (half-duplex). "A" must be connected to "A" and "B" must be connected to "B" !!!!2.) This instructable is written for our RS485 HAT. This HAT is using the on-board UART of the Raspberry Pi. Please note: You can use /dev/ttyAMA0 to send and receive data to the on-board UART, but the better and more modern term is /dev/serial0 as in the description.3.) Simple TTL to RS485 converter from Ebay comes usually without any auto transmitting feature. You have to control the transmit/receive mode of such adaptors via an GPIO port. 4.) It is possible to test the function of the on-board uart (and of the USB ports with serial converters too) with a simple terminal program for example Minicom

We've changed the provider to weatherbit.io - please check the latest software version on GITHUB

Looks great, with the background picture!

I've changed the source code on github according your suggestion - this works fine!